Example usage for java.util GregorianCalendar GregorianCalendar

Introduction

In this page you can find the example usage for java.util GregorianCalendar GregorianCalendar.

Prototype

public GregorianCalendar()

Source Link

Document

Constructs a default GregorianCalendar using the current time in the default time zone with the default Locale.Category#FORMAT FORMAT locale.

Usage

From source file:Main.java

public static java.util.Date getDateStart(java.util.Date d) {

    Calendar c = new GregorianCalendar();
    c.clear();/*  w w  w  .ja v  a  2 s. c om*/
    Calendar co = new GregorianCalendar();
    co.setTime(d);
    c.set(Calendar.DAY_OF_MONTH, co.get(Calendar.DAY_OF_MONTH));
    c.set(Calendar.MONTH, co.get(Calendar.MONTH));
    c.set(Calendar.YEAR, co.get(Calendar.YEAR));
    // c.add(Calendar.DAY_OF_MONTH,1);
    // c.add(Calendar.MILLISECOND,-1);
    return c.getTime();
}

From source file:Main.java

public static int getWeekOfYear(String year, String month, String day) {
    Calendar cal = new GregorianCalendar();
    cal.clear();//from w  ww  .  j av  a 2 s  . co  m
    cal.set(new Integer(year).intValue(), new Integer(month).intValue() - 1, new Integer(day).intValue());
    return cal.get(Calendar.WEEK_OF_YEAR);
}

From source file:Main.java

public static String getCreateTime() {
    String createtime = null;//from   w w w . j  a  v a  2s. com
    Calendar calendar = new GregorianCalendar();
    createtime = Long.toString(calendar.getTimeInMillis());
    return createtime;
}

From source file:Main.java

public static int toH(long time) {
    Date dat = new Date(time);
    GregorianCalendar gc = new GregorianCalendar();
    gc.setTime(dat);//w w w . java  2s .c  om
    java.text.SimpleDateFormat format = new java.text.SimpleDateFormat("HH");
    String sb = format.format(gc.getTime());
    int i = Integer.parseInt(sb);
    return i;
}

From source file:Main.java

public static String toHM(long time) {
    Date dat = new Date(time);
    GregorianCalendar gc = new GregorianCalendar();
    gc.setTime(dat);//from  www  . j a v a  2s. c  o m
    java.text.SimpleDateFormat format = new java.text.SimpleDateFormat("HH:mm");
    String sb = format.format(gc.getTime());
    return sb;
}

From source file:Main.java

public static int toM(long time) {
    Date dat = new Date(time);
    GregorianCalendar gc = new GregorianCalendar();
    gc.setTime(dat);//from   ww  w .j  av  a2s . co  m
    java.text.SimpleDateFormat format = new java.text.SimpleDateFormat("mm");
    String sb = format.format(gc.getTime());
    int i = Integer.parseInt(sb);
    return i;

}

From source file:Main.java

public static int toTimeM(long time) {
    Date dat = new Date(time);
    GregorianCalendar gc = new GregorianCalendar();
    gc.setTime(dat);//from   w  w w . jav a  2 s.  co  m
    java.text.SimpleDateFormat format = new java.text.SimpleDateFormat("mm");
    String sb = format.format(gc.getTime());
    int i = Integer.parseInt(sb);
    return i;
}

From source file:Main.java

public static String formatDateDiff(long date) {
    Calendar c = new GregorianCalendar();
    c.setTimeInMillis(date);/*from   ww  w .ja va2 s . c o m*/
    Calendar now = new GregorianCalendar();
    return formatDateDiff(now, c);
}

From source file:Main.java

@SuppressWarnings("deprecation")
public static String changeDateAsMonth(String date, int imonth) {
    GregorianCalendar calendar = new GregorianCalendar();
    if (date.length() == 8) {
        calendar.set(Integer.parseInt(date.substring(0, 4)), Integer.parseInt(date.substring(4, 6)) - 1,
                Integer.parseInt(date.substring(6, 8)));
    } else if (date.length() == 10) {
        calendar.set(Integer.parseInt(date.substring(0, 4)), Integer.parseInt(date.substring(5, 7)) - 1,
                Integer.parseInt(date.substring(8, 10)));
    }/*from  w  ww  .j av  a2 s  . com*/
    calendar.add(GregorianCalendar.MONTH, imonth);
    String sDate[] = calendar.getTime().toLocaleString().split(" ");
    return sDate[0];
}

From source file:Main.java

public static String weekDay(String year, String month, String day) {
    String strWeekday = "";
    try {//from   w  w  w .j  a  v  a2 s  .c om
        GregorianCalendar cal = new GregorianCalendar();
        cal.setLenient(false);
        cal.clear();
        cal.set(Integer.parseInt(year), Integer.parseInt(month) - 1, Integer.parseInt(day));
        strWeekday = String.valueOf(cal.get(Calendar.DAY_OF_WEEK) - 1);
    } catch (IllegalArgumentException e) {
        strWeekday = "";
    }
    return strWeekday;
}